/** 样式初始化
  * 浏览器常规样式初始化
  * el-loading样式调整
  * el-loading-spinner样式调整
  */

  html, body, div, span, applet, object, iframe,
  h1, h2, h3, h4, h5, h6, p, blockquote, pre,
  a, abbr, acronym, address, big, cite, code,
  del, dfn, em, img, ins, kbd, q, s, samp,
  small, strike, strong, sub, sup, tt, var,
  b, u, i, center,
  dl, dt, dd, ol, ul, li,
  fieldset, form, label, legend,
  table, caption, tbody, tfoot, thead, tr, th, td,
  article, aside, canvas, details, embed,
  figure, figcaption, footer, header, hgroup,
  menu, nav, output, ruby, section, summary,
  time, mark, audio, video {
      margin: 0;
      padding: 0;
      border: 0;
      font-size: 100%;
      font: inherit;
      vertical-align: baseline;
  }
  
  /* HTML5 display-role reset for older browsers */
  article, aside, details, figcaption, figure,
  footer, header, hgroup, menu, nav, section {
      display: block;
  }
  
  body {
      line-height: 1;
  }
  
  ol, ul {
      list-style: none;
  }
  
  blockquote, q {
      quotes: none;
  }
  
  blockquote:before, blockquote:after,
  q:before, q:after {
      content: '';
      content: none;
  }
  
  table {
      border-collapse: collapse;
      border-spacing: 0;
  }
  
  .el-loading {
      position: absolute;
      z-index: 2000;
      background-color: rgba(255, 255, 255, .7);
      margin: 0;
      top: 0;
      right: 0;
      bottom: 0;
      left: 0;
      -webkit-transition: opacity .3s;
      transition: opacity .3s;
  }
  
  .el-loading-spinner {
      top: 50%;
      margin-top: -21px;
      width: 100%;
      text-align: center;
      position: absolute;
  }